(19)
(11) EP 0 377 836 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.10.1990 Bulletin 1990/43

(43) Date of publication A2:
18.07.1990 Bulletin 1990/29

(21) Application number: 89122854.6

(22) Date of filing: 11.12.1989
(51) International Patent Classification (IPC)5: A61K 7/09, A61K 7/06
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 12.12.1988 US 282753

(71) Applicant: HELENE CURTIS, INC.
Chicago Illinois 60610 (US)

(72) Inventors:
  • Panandiker, Rajan K.
    Laurel, MD 20708 (US)
  • Newell, Gerald P.
    Hanover Park. Ill.60103 (US)

(74) Representative: Patentanwälte Dipl.-Ing. R. Splanemann Dr. B. Reitzner Dipl.-Ing. K. Baronetzky 
Tal 13
80331 München
80331 München (DE)


(56) References cited: : 
   
       


    (54) Method and composition to condition hair


    (57) A method of conditioning the hair and impart­ing semi-permanent hair set retention properties com­prising treating the hair with a composition comprising a protein having a sufficient amount of an amino acid having a disulfide linkage, such as a keratin-based protein that includes the amino acid cystine. The method and composition are essentially pH independent and provide unexpectedly durable, semi-permanent hair set retention properties, and hair conditioning proper­ties, after application to human hair.





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